RCA RCA Data Collection and Analysis

Question 1

Which type of data is most valuable to collect immediately after a failure event in RCA?

Accepted Answer

Perishable evidence such as physical conditions, witness accounts, and system logs

Answer

Perishable evidence degrades quickly after an incident, making it critical to collect physical conditions, witness statements, and logs as soon as possible.

Question 2

In RCA data collection, what is the purpose of a 'timeline reconstruction'?

Accepted Answer

To establish the sequence of events leading up to a failure

Answer

A timeline reconstruction chronologically orders all events before, during, and after a failure to identify what changed and when, pointing toward causes.

Question 3

What is a 'check sheet' used for in RCA data collection?

Accepted Answer

Systematically recording the frequency or occurrence of specific events or defects

Answer

A check sheet is a structured form used to collect and tally data about the frequency of specific events or defects in a consistent, repeatable way.

Question 4

Why is it important to distinguish between 'observation' and 'interpretation' when collecting RCA data?

Accepted Answer

Observations are objective facts; interpretations are inferences that may introduce bias

Answer

Keeping observations separate from interpretations ensures that conclusions are based on factual evidence rather than assumptions or premature judgments.

Question 5

What is 'stratification' in the context of RCA data analysis?

Accepted Answer

Separating data into subgroups (e.g., by shift, machine, or operator) to reveal patterns

Answer

Stratification breaks data into subgroups to see if a problem is concentrated in a particular category, such as a specific shift, machine, or operator.

RCA - Root Cause Analysis Practice Test

RCA - Root Cause Analysis Practice Test

RCA RCA Data Collection and Analysis